What are the symptoms of having an excessively high eyeglass prescription?
Nov 19, 2025
Source: Cainiu Health
Dr. Wang Lei
Introduction
In general, common symptoms of wearing glasses with excessively high prescription include blurred vision, dizziness, headaches, eye strain, nausea, and visual distortion. If discomfort occurs, it is recommended to promptly visit a reputable hospital for an adjustment. Additionally, long-term use of overly strong corrective lenses may lead to rapid deterioration of vision. If any discomfort arises after getting new glasses, a follow-up eye examination should be conducted as soon as possible.
Under normal circumstances, common symptoms of overly high eyeglass prescriptions include blurred vision, dizziness and headaches, eye strain, nausea and discomfort, and visual distortion. If any discomfort occurs, it is recommended to promptly visit a正规 hospital for prescription adjustment. Detailed analysis is as follows:
1. Blurred Vision
Blurred vision manifests as unclear vision both at distance and near after wearing the glasses, or double images when viewing objects. This symptom often results from excessive lens power, causing parallel light rays to focus in front of the retina, preventing formation of a clear image. The eyes' continuous focusing efforts cannot compensate, thus affecting visual quality.
2. Dizziness and Headaches
Dizziness and headaches typically present as pressure or pain in the forehead or temples, especially noticeable during the initial period of wear. Excessive prescription forces the ciliary muscles of the eyes to over-contract, stretching ocular nerves, and this discomfort can radiate to the head. Prolonged wear may gradually worsen these symptoms.
3. Eye Strain
Eye strain is characterized by a heavy feeling in the eyeballs, eyelid heaviness, and increased blinking frequency. The ciliary muscles must remain constantly tense to adapt to the excessive prescription, leading to muscle fatigue and a sensation of soreness and pressure. In severe cases, dry eyes and photophobia may occur.
4. Nausea and Discomfort
Nausea and discomfort often accompany dizziness, with some individuals experiencing urges to vomit. Conflicts between visual signals and body balance signals in the brain stimulate the nervous system, triggering gastrointestinal reactions, which become more pronounced during walking or head movements.
5. Visual Distortion
Visual distortion refers to straight lines appearing curved, or errors in judging object size and distance. Excessive lens power alters the path of light refraction, causing distorted retinal images and abnormal visual information received by the brain, resulting in the perception of deformed objects.
In addition, long-term use of overly strong lenses may lead to rapid deterioration of vision. If discomfort occurs after getting new glasses, one should promptly return for a re-examination of the prescription to avoid prolonged abnormal eye accommodation.
